How to Classify Triangles

Step-by-Step Guide

1. 1

   Step 1: Measure each side of the 3 sides of the triangle using a ruler.

   Inspect to see if some lines are longer than others in length and if any of the lines are equal in length. , A triangle with at least 2 congruent, equal, sides falls into the category of isosceles.
   
   A triangle with all 3 congruent sides will be classified as equilateral.
   
   A triangle with no congruent sides is labeled as scalene.
2. 2

   Step 2: Place the ruler at the end of each line segment of the 3 lines in the triangle and measure to the opposite endpoint of each line.

3. 3

   Step 3: Make note of the measurement for each of the 3 triangle sides.

4. 4

   Step 4: Determine how the 3 sides compare in length.

5. 5

   Step 5: Place the triangle into a category based on the comparison that you concluded about 3 line segment lengths of the shape.

Detailed Guide

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